Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 890 · 40 questions

What you do (Bend and split): 1. Fill a clear glass with water and set it on a steady, sunny windowsill. 2. Put white paper on the floor where the sunlight passes through the glass. 3. Move the paper or glass slowly until a rainbow appears. 4. Never look straight at the Sun.

1. 1.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a balloon (c) a sheet of white paper (d) a clear glass of water
2. 2.🧺 Do we need bright sunlight for the water rainbow? (a) needed (b) not needed
3. 3.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) a magnet (c) a sunny window (d) bright sunlight
4. 4.🧺 Do we need yeast for the water rainbow? (a) not needed (b) needed
5. 5.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) bright sunlight (c) a mirror (d) a clear glass of water
6. 6.☀️ What is white sunlight really made of? (a) tiny drops of water (b) only yellow light (c) many colours mixed (d) tiny bits of dust
7. 7.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is kept the same? (a) brightness of rainbow (b) the same white paper (c) the amount of water
8. 8.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is kept the same? (a) brightness of rainbow (b) the time of day (c) the amount of water
9. 9.🌈 In VIBGYOR, what number colour is red?
10. 10.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the time of day is what we measure. (a) False (b) True
11. 11.🌈 Why does sunlight make a rainbow through a glass of water? (a) the glass is painted (b) water splits the light (c) the paper makes colours (d) the water is coloured
12. 12.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a sunny window (c) bright sunlight (d) a mirror
13. 13.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is kept the same? (a) the amount of water (b) the same glass (c) brightness of rainbow
14. 14.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it floats away (b) it turns brighter (c) the rainbow fades (d) it turns all red
15. 15.🌈 How many colours do we name in a rainbow (VIBGYOR)?
16. 16.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) bright sunlight (c) turmeric powder (d) a sheet of white paper
17. 17.🧺 Do we need a magnet for the water rainbow? (a) needed (b) not needed
18. 18.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the time of day”? (a) we measure it (b) we keep it the same (c) we change it
19. 19.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a magnet (c) a battery cell (d) bright sunlight
20. 20.🛟 Which rule keeps you safe when working with sunlight? (a) look at it through glass (b) stare at the Sun (c) never look at the Sun (d) look at it in a mirror
21. 21.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a sunny window (c) a clear glass of water (d) a balloon
22. 22.🧺 Which of these is needed for the water rainbow? (a) a sheet of white paper (b) a mirror (c) yeast (d) a magnet
23. 23.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is what we measure? (a) the same glass (b) the amount of water (c) the same white paper (d) brightness of rainbow
24. 24.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the amount of water”? (a) we measure it (b) we keep it the same (c) we change it
25. 25.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the amount of water is the one thing we change. (a) True (b) False
26. 26.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is the one thing we change? (a) the same window (b) the amount of water (c) the same white paper (d) brightness of rainbow
27. 27.True or false: bright sunlight is not needed for the water rainbow. (a) False (b) True
28. 28.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) blue (b) violet (c) green (d) red
29. 29.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a magnet (b) a shadow of ice (c) snow falling (d) a small rainbow
30. 30.🌦️ To see a rainbow in the sky, where must the Sun be? (a) under the ground (b) behind you (c) straight above you (d) in front of you
31. 31.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) balloons (b) magnets (c) clouds (d) prisms
32. 32.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the time of day is the one thing we change. (a) False (b) True
33. 33.🧺 Do we need turmeric powder for the water rainbow? (a) needed (b) not needed
34. 34.🧺 Which of these is needed for the water rainbow? (a) a clear glass of water (b) a magnet (c) yeast (d) a battery cell
35. 35.🛟 Why should the glass of water stand on a steady, flat place? (a) so it turns blue (b) so it does not fall (c) so it gets hot (d) so the Sun moves
36. 36.True or false: a clear glass of water is not needed for the water rainbow. (a) False (b) True
37. 37.🌈 In VIBGYOR, what number colour is blue?
38. 38.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “brightness of rainbow”? (a) we change it (b) we keep it the same (c) we measure it
39. 39.True or false: a mirror is not needed for the water rainbow. (a) True (b) False
40. 40.🧺 Do we need a mirror for the water rainbow? (a) not needed (b) needed

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids